Carriker’s Speckled Tree-rat vs Chiru

Pattonomys carrikeri compared with Pantholops hodgsonii

Key Differences

• Carriker’s Speckled Tree-rat is Data Deficient while Chiru is Near Threatened.

Taxonomic Classification

Rank	Carriker’s Speckled Tree-rat	Chiru
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Artiodactyla (Even-toed Ungulates)
Family	Echimyidae	Bovidae (Bovids)
Genus	Pattonomys	Pantholops
Species	Pattonomys carrikeri	Pantholops hodgsonii

Evolutionary Relationship

Carriker’s Speckled Tree-rat and Chiru share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Carriker’s Speckled Tree-rat

DD — Data Deficient

Chiru

NT — Near Threatened

Physical Characteristics

Attribute	Carriker’s Speckled Tree-rat	Chiru
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Carriker’s Speckled Tree-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.

Chiru

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Carriker’s Speckled Tree-rat

The Carriker’s Speckled Tree-rat (Pattonomys carrikeri) is a species in the genus Pattonomys. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Chiru

The Chiru (Pantholops hodgsonii), also known as the Tibetan Antelope, is a bovid endemic to the Tibetan Plateau and adjacent high-altitude grasslands of China, with small populations in India. Males bear long, slender, nearly vertical horns that can exceed 70 centimetres in length, while females are hornless. The species is highly adapted to life at elevations of 3,700–5,500 metres, possessing a dense, fine underfur known as shahtoosh — one of the finest animal fibres in the world — which provided insulation against extreme cold but also made chiru a prime target for illegal poaching. Massive hunting pressure during the late twentieth century for shahtoosh shawl production devastated populations, which fell to as few as 75,000 individuals. Following intensified conservation efforts, trade bans, and anti-poaching patrols in China, numbers have partially recovered, though the species remains Near Threatened. Chiru are highly migratory; females undertake remarkable annual migrations of up to 300 kilometres to reach calving grounds in the Chang Tang plateau. Males typically remain at lower elevations year-round. They graze on grasses, sedges, and forbs, and face ongoing threats from climate change affecting high-altitude pasture productivity and from infrastructure development fragmenting migration corridors.